Home / 66,936,843.21-99,954,511.07-54,665,150.75

Finding the Fourth Proportional to 66,936,843.21, 99,954,511.07 and 54,665,150.75

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Solution

The fourth proportional to 66,936,843.21, 99,954,511.07 and 54,665,150.75 is: 81,629,610.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936,843.21 : 99,954,511.07 = 54,665,150.75 : x
  2. Step 2: Convert to fraction form
    66,936,843.21/99,954,511.07 = 54,665,150.75/x
  3. Step 3: Cross multiply
    66,936,843.21x = 99,954,511.07 × 54,665,150.75
  4. Step 4: Simplify right side
    66,936,843.21x = 5,464,028,415,420,984
  5. Step 5: Solve for x
    x = 5,464,028,415,420,984/66,936,843.21
  6. Step 6: Final answer
    x = 81,629,610.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.